CN211191237U - Dust removing device for ash bucket - Google Patents
Dust removing device for ash bucket Download PDFInfo
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- CN211191237U CN211191237U CN201921613929.6U CN201921613929U CN211191237U CN 211191237 U CN211191237 U CN 211191237U CN 201921613929 U CN201921613929 U CN 201921613929U CN 211191237 U CN211191237 U CN 211191237U
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- ash bucket
- radio frequency
- material level
- blowback
- level switch
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Abstract
The utility model discloses an ash bucket dust collector, ash bucket dust collector includes: an ash hopper; the radio frequency admittance material level switch assembly is obliquely arranged on the cavity wall of the ash bucket; the blowback subassembly, the blowback subassembly slope is installed on the chamber wall of ash bucket, and is located the top of radio frequency admittance material level switch module, the blowback subassembly is equipped with an at least gas outlet, the gas outlet court the radio frequency admittance material level switch module direction, the blowback subassembly is located the outside one end of ash bucket is equipped with the air inlet, the air inlet with the gas outlet intercommunication, the air inlet is used for introducing the air the gas outlet to realize reducing the ash that falls on the radio frequency admittance material level switch module, avoid the radio frequency admittance material level switch module to send the dummy material level signal, the accuracy that reinforcing radio frequency admittance material level switch module detected.
Description
Technical Field
The utility model relates to a boiler equipment technical field, in particular to ash bucket dust collector.
Background
After ultra-clean emission is transformed, the requirement of the emission concentration of flue gas dust of a thermal power plant is less than or equal to 10mg/m3, the emission concentration of the dust is obtained through detection of the material level of an ash bucket, once the material level of the ash bucket is high, the safe operation of a rectification transformer system is directly influenced, the rectification transformer trips when the safety operation is serious, and environmental protection data (dust) exceed the standard.
The conventional measurement mode mostly adopts and installs height/low radio frequency admittance material level switch respectively in ash bucket different positions, the sensor and the container wall of radio frequency admittance material level switch and the measured medium form admittance value, when the ash bucket material level covers the sensor, admittance value changes correspondingly, circuit unit will measure admittance value and convert switching value into switching value signal output, however, there is ash falling frequently in the sensor among the operating condition, make material level switch value change, send false material level signal, make desulfurization ash processing system make and force the ash discharge, stop desulfurization circulation system, the direct outward behavior of discharging of flue gas, and the production cost is increased, and environmental pollution is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an ash bucket dust collector, aims at reducing the ash that falls on the radio frequency admittance material level switch module, avoids the radio frequency admittance material level switch module to send fake material level signal, the accuracy that reinforcing radio frequency admittance material level switch module detected.
In order to achieve the above object, the utility model provides an ash bucket dust collector, ash bucket dust collector includes:
an ash hopper;
the radio frequency admittance material level switch assembly is obliquely arranged on the cavity wall of the ash bucket, the probe end of the radio frequency admittance material level switch assembly extends away from the cavity wall, and the shielding end of the radio frequency admittance material level switch assembly penetrates through the cavity wall and extends to the outside of the ash bucket;
the blowback subassembly, the blowback subassembly slope is installed on the chamber wall of ash bucket, and is located the top of radio frequency admittance material level switch module, the blowback subassembly is equipped with an at least gas outlet, the gas outlet court the radio frequency admittance material level switch module direction, the blowback subassembly is located the one end of the outside of ash bucket is equipped with the air inlet, the air inlet with the gas outlet intercommunication, the air inlet is used for introducing the air the gas outlet.
Optionally, the blowback assembly includes:
the back flushing pipe is obliquely arranged inside the ash hopper, and the air outlet is arranged on the back flushing pipe;
and the switch valve is connected with one end of the blowback pipe, which is positioned outside the ash bucket.
Optionally, the extending direction of the blowback pipe is the same as the extending direction of the radio frequency admittance material level switch assembly.
Optionally, the blowback pipe is equipped with a plurality of gas outlets, and is a plurality of the gas outlet all with the air inlet intercommunication, just a plurality of gas outlets orientation radio frequency admittance material level switch module.
Optionally, the blowback pipe is a stainless steel pipe.
Optionally, the ash bucket dust collector further comprises:
and the compressed air assembly is connected with the air inlet of the back blowing assembly.
Optionally, the switch valve is an electromagnetic valve, and the electromagnetic valve is connected to an air inlet of the blowback assembly.
Optionally, the ash bucket dust collector further comprises:
and the P L C controller, the P L C controller and the electromagnetic valve are electrically connected with the radio frequency admittance material level switch component.
Optionally, the vertical distance between the blowback assembly and the radio frequency admittance material level switch assembly is different by 150 mm.
Optionally, the back-blowing component is obliquely connected with the cavity wall of the ash bucket, and an included angle between the back-blowing component and the cavity wall of the ash bucket is 5-10 degrees.
The utility model discloses technical scheme adopts and adds the blowback subassembly in the top of radio frequency admittance material level switch module, wherein, gas outlet on the blowback subassembly is towards radio frequency admittance material level switch module, through this gas outlet combustion gas flow direction radio frequency admittance material level switch module to make the ash that falls on the radio frequency admittance material level switch module can get rid of, with the ash that falls on reducing the radio frequency admittance material level switch module, avoid radio frequency admittance material level switch module to send fake material level signal, the accuracy that reinforcing radio frequency admittance material level switch module detected.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural view of the ash bucket dust removing device of the present invention.
The reference numbers illustrate:
the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1, in the present embodiment, the dust removing device of the ash bucket includes
An ash bucket 1;
the radio frequency admittance material level switch component 2 is obliquely arranged on the cavity wall of the ash bucket 1, the probe end of the radio frequency admittance material level switch component 2 extends away from the cavity wall, and the shielding end of the radio frequency admittance material level switch component 2 penetrates through the cavity wall and extends to the outside of the ash bucket 1;
The radio frequency admittance material level switch component 2 is internally provided with a radio frequency admittance material level sensing element, and the radio frequency admittance material level sensing element is a novel material level control technology which is developed from capacitance, is prevented from material hanging, is more reliable, more accurate and has wider applicability, and is the upgrade of the capacitance material level technology. The meaning of a radio frequency admittance level sensing element is the inverse of the impedance in the electricity, which is a combination of resistive, capacitive and inductive components, whereas the radio frequency is the high frequency radio wave spectrum, so a radio frequency admittance level sensing element can be understood as measuring admittance using high frequency radio waves.
The probe end of the radio frequency admittance sensing element is arranged in the ash bucket 1, when the radio frequency admittance sensing element is used for measurement, the falling ash in the ash bucket 1 easily falls onto the radio frequency admittance sensing element, the blowback component 3 is arranged on the radio frequency admittance sensing element, the external air is introduced into the air inlet of the blowback component 3, the air is discharged from the air outlet of the blowback component 3, so that the falling ash on the radio frequency admittance sensing element is blown away, the inaccurate data measured by the radio frequency admittance sensing element caused by the excessive falling ash on the radio frequency admittance sensing element is avoided, and the accuracy of the data measured by the radio frequency admittance sensing element is improved.
The air inlet of the back flushing component 3 is connected with a compressed air machine, the air outlet end of the compressed air machine is communicated with the air inlet of the back flushing component 3, the air suction end of the compressor sucks air, the air enters the cylinder, after the piston is driven by the operation of the motor to compress the air, the air is discharged from the air outlet end of the compressor, the air flows to the air inlet of the back flushing component 3, then flows to the air outlet of the back flushing component 3 from the air inlet of the back flushing component 3 and is discharged from the air outlet, and the dust falling on the radio frequency admittance material level sensing element is blown by the air discharged from the air outlet.
This embodiment technical scheme adopts and adds blowback subassembly 3 in the top of radio frequency admittance material level switch module 2, wherein, gas outlet on the blowback subassembly 3 is towards radio frequency admittance material level switch module 2, gas flow direction radio frequency admittance material level switch module 2 through this gas outlet combustion, so that the ash that falls on the radio frequency admittance material level switch module 2 can be got rid of, in order to reduce the ash that falls on the radio frequency admittance material level switch module 2, avoid radio frequency admittance material level switch module 2 to send fake material level signal, the accuracy that reinforcing radio frequency admittance material level switch module 2 detected.
Further, the blowback assembly 3 includes:
the blowback pipe 31 is obliquely arranged inside the ash bucket 1, and the air outlet is formed in the blowback pipe 31;
and the switch valve 32 is connected with one end of the blowback pipe 31 positioned outside the ash bucket 1, and the switch valve 32 is connected with the other end of the blowback pipe 31 positioned outside the ash bucket 1.
Gas outlet on the blowback pipe 31 is towards radio frequency admittance material level switch module 2 for this gas outlet combustion gas flow direction radio frequency admittance material level switch module 2, so that the ash that falls on the radio frequency admittance material level switch module 2 is blown to the gas, so that reduce the ash that falls on the radio frequency admittance material level switch module 2, avoid radio frequency admittance material level switch module 2 to send out the false material level signal.
Wherein, the one end that is located the outside of ash bucket 1 at blowback pipe 31 is even connected with ooff valve 32, and this ooff valve 32 is used for controlling blowback pipe 31 and lets in gas, and specifically, ooff valve 32 can manual valve, and the staff can manually open or close manual valve, and ooff valve 32 also can be the solenoid valve, and solenoid valve and P L C controller electric connection, through the DCS configuration logic on the P L C controller, and then control solenoid valve open or close regularly, and specific solenoid valve is regularly opened the interval time and need be decided according to the displacement of ash bucket 1.
One end of the blowback pipe 31 located inside the ash bucket 1 is closed, so that the gas flowing into the blowback pipe 31 can flow out from the gas outlet.
Specifically, in this embodiment, the length of the blowback pipe 31 is 800mm, and the pipe diameter of the blowback pipe 31 is 20 mm.
Further, the extending direction of blowback pipe with the extending direction of radio frequency admittance material level switch module 2 is the same for the flow range of the gas that the gas outlet of blowback pipe flows can cover radio frequency admittance material level switch module 2 completely, with the ash that falls on reducing radio frequency admittance material level switch module 2, avoids radio frequency admittance material level switch module 2 to send out the false material level signal.
Further, the blowback pipe 31 is equipped with a plurality of gas outlets, and is a plurality of the gas outlet all with the air inlet intercommunication, just a plurality of gas outlets orientation radio frequency admittance material level switch module 2.
The switch valve 32 is opened, the gas flows into the blowback pipe 31 and flows out from the plurality of gas outlets, and the gas flowing out from the plurality of gas outlets simultaneously blows dust falling on the radio frequency admittance material level sensing element so as to enhance the dust falling efficiency on the blowing radio frequency admittance material level switch component 2.
The air outlets are arranged at intervals of 50mm, and the diameters of the air outlets are 6 mm.
Further, the blowback pipe 31 is a stainless steel pipe.
The blowback pipe 31 is made of stainless steel, so that the blowback pipe 31 can be prevented from rusting while the hardness of the blowback pipe 31 is ensured, and the blowback pipe 31 can be rusted to possibly cause the blockage of an air outlet or the blockage of an air circulation channel.
Further, ash bucket dust collector still includes:
and the compressed air assembly is connected with the air inlet of the back blowing assembly 3.
The compressed air subassembly is the compressed air machine, the compressed air machine is connected at the air inlet of blowback subassembly 3, the end of giving vent to anger of compressed air machine communicates with the air inlet of blowback subassembly 3, the end of breathing in of compressor inhales gas, gas gets into in the cylinder, drive the piston through the motor operation and compress it back, the exhaust end discharge gas of compressor, this gas flows to the air inlet of blowback subassembly 3, flow to the gas outlet of blowback subassembly 3 from the air inlet of blowback subassembly 3 again, and discharge from this gas outlet, the gas of gas outlet combustion blows the dust fall on the radio frequency admittance material level sensing element.
Further, the switch valve 32 is an electromagnetic valve, and the electromagnetic valve is connected to the air inlet of the blowback assembly 3.
The switch valve 32 is an electromagnetic valve, and is controlled to be opened or closed periodically, so that gas is introduced into the back flushing pipe 31 periodically, dust falling on the radio frequency admittance material level switch assembly 2 is removed periodically, and the specific periodic opening interval time of the electromagnetic valve is determined according to the exhaust amount of the ash hopper 1.
Further, ash bucket dust collector still includes:
the P L C controller, the P L C controller with the solenoid valve and the radio frequency admittance material level switch assembly 2 electrical connection.
The electromagnetic valve is electrically connected with the P L C controller, and is controlled to be opened or closed periodically through DCS configuration logic on the P L C controller, and specific periodic opening interval time is determined according to the exhaust volume of the ash hopper 1.
Further, the vertical direction distance difference between the back flushing component 3 and the radio frequency admittance material level switch component 2 is 150 mm.
In order to optimize the effect of blowing and dust falling of the back-blowing component 3, the back-blowing component 3 is arranged at a position 150mm above the radio frequency admittance material level switch component 2.
Further, the back-blowing component 3 is obliquely connected with the cavity wall of the ash bucket 1, and an included angle between the back-blowing component 3 and the cavity wall of the ash bucket 1 is 5-10 degrees.
In order to enable the gas flowing in from the gas inlet of the back blowing component 3 to flow out from the gas outlet, the back blowing component 3 is horizontally connected with the cavity wall of the ash bucket 1 downwards, and the included angle between the back blowing component 3 and the cavity wall of the ash bucket 1 is 5-10 degrees, so that the gas in the back blowing component 3 can flow to the gas outlet conveniently.
The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.
Claims (10)
1. The utility model provides an ash bucket dust collector which characterized in that, ash bucket dust collector includes:
an ash hopper;
the radio frequency admittance material level switch assembly is obliquely arranged on the cavity wall of the ash bucket, the probe end of the radio frequency admittance material level switch assembly extends away from the cavity wall, and the shielding end of the radio frequency admittance material level switch assembly penetrates through the cavity wall and extends to the outside of the ash bucket;
the blowback subassembly, the blowback subassembly slope is installed on the chamber wall of ash bucket, and is located the top of radio frequency admittance material level switch module, the blowback subassembly is equipped with an at least gas outlet, the gas outlet court the radio frequency admittance material level switch module direction, the blowback subassembly is located the one end of the outside of ash bucket is equipped with the air inlet, the air inlet with the gas outlet intercommunication, the air inlet is used for introducing the air the gas outlet.
2. The ash bucket dust collector of claim 1, wherein the blowback assembly comprises:
the back flushing pipe is obliquely arranged inside the ash hopper, and the air outlet is arranged on the back flushing pipe;
and the switch valve is connected with one end of the blowback pipe, which is positioned outside the ash bucket.
3. The ash bucket dust collector of claim 2, wherein the blowback pipe extends in the same direction as the rf admittance level switch assembly.
4. The ash bucket dust collector of claim 3, wherein the blowback pipe is provided with a plurality of air outlets, the plurality of air outlets are communicated with the air inlet, and the plurality of air outlets face the radio frequency admittance material level switch assembly.
5. The ash bucket dust collector of claim 2, wherein the blowback pipe is a stainless steel pipe.
6. The ash bucket dust removing device of claim 1, further comprising:
and the compressed air assembly is connected with the air inlet of the back blowing assembly.
7. The ash bucket dust collector of claim 2, wherein the switch valve is an electromagnetic valve, and the electromagnetic valve is connected to the air inlet of the blowback assembly.
8. The ash bucket dust removing device of claim 7, further comprising:
and the P L C controller, the P L C controller and the electromagnetic valve are electrically connected with the radio frequency admittance material level switch component.
9. The ash bucket dust collector of claim 1, wherein the vertical distance between the blowback assembly and the radio frequency admittance material level switch assembly differs by 150 mm.
10. The ash bucket dust collector of claim 1, wherein the blowback assembly is connected obliquely with the wall of the ash bucket, and the angle between the blowback assembly and the wall of the ash bucket is 5-10 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921613929.6U CN211191237U (en) | 2019-09-25 | 2019-09-25 | Dust removing device for ash bucket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921613929.6U CN211191237U (en) | 2019-09-25 | 2019-09-25 | Dust removing device for ash bucket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211191237U true CN211191237U (en) | 2020-08-07 |
Family
ID=71884943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921613929.6U Active CN211191237U (en) | 2019-09-25 | 2019-09-25 | Dust removing device for ash bucket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211191237U (en) |
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2019
- 2019-09-25 CN CN201921613929.6U patent/CN211191237U/en active Active
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